| 摘要 |
<p>PURPOSE:To provide a theft preventive device for a two wheeler by which weight reduction ant compactification become possible and which is convenient for the control and carrying. CONSTITUTION:A theft preventive device 1 for a two wheeler is formed by combining one extensile and contractile part 2 and the other extensile and contractile part 2' with each other. The extensile and contractile parts 2 and 2' are composed of cylindrical bodies 4 and 4' and bars 6 and 6' as housing bars to be housed in the cylindrical bodies 4 and 4' from the openings 5 and 5', and when these bars 6 and 6' are taken in and out of the cylindrical bodies 4 and 4', an overall length extends and contracts. Thereby, since the bar 6 and the bar 6' are housed respectively in a pipe part 4a and a pipe part 4'a, the whole device can be made compact by that quantity, so that the control and carrying can be made convenient.</p> |
